My 16-team keeper league is voting about whether or not to start using Yahoo's new 'NA' roster spot this season. I'm looking to be prepared and determine which player I should add to this roster spot should it pass the vote.

I've skimmed the waiver wire and found these players as the top NA-eligible guys right now. How would you rank them?

While I obviously want the top prospect available, part of me also has to think about the fact that wo only have 6 keepers. So is Jorge Soler worth it this season since it sounds like he'll be kept in the minors all year and may not be keeper-worthy next off-season? On the other hand, Mike Olt seems more poised to ge a shot in the big leagues this year, but I already have Rizzo at first. But could Olt get enough RF playing time to become eligible there.

So many thoughts going through my head, which is why I turn here for help!

Here's my current roster for consideration if if affects your rankings of the players above: